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LiDAR point cloud semantic segmentation is essential for interpreting 3D environments in applications such as autonomous driving and robotics. Recent methods achieve strong performance by exploiting different point cloud representations or…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Simone Mosco , Daniel Fusaro , Wanmeng Li , Emanuele Menegatti , Alberto Pretto

In this paper, we propose PASS3D to achieve point-wise semantic segmentation for 3D point cloud. Our framework combines the efficiency of traditional geometric methods with robustness of deep learning methods, consisting of two stages: At…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 Xin Kong , Guangyao Zhai , Baoquan Zhong , Yong Liu

Point clouds, a prominent method of 3D representation, are extensively utilized across industries such as autonomous driving, surveying, electricity, architecture, and gaming, and have been rigorously investigated for their accuracy and…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Jingyuan Tang , Yuhuan Zhao , Songlin Sun , Yangang Cai

3D point cloud neural networks have significantly enhanced the perceptual capabilities of resource-limited mobile intelligent systems. However, despite the transformative impact, the point cloud algorithm suffers from substantial memory…

Hardware Architecture · Computer Science 2026-03-24 Dengfeng Wang , Shunqin Cai , Yanan Sun

Visual Parameter-Efficient Fine-Tuning (PEFT) has become a powerful alternative for full fine-tuning so as to adapt pre-trained vision models to downstream tasks, which only tunes a small number of parameters while freezing the vast…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Haoyu He , Jianfei Cai , Jing Zhang , Dacheng Tao , Bohan Zhuang

Event cameras have emerged as a promising vision sensor in recent years due to their unparalleled temporal resolution and dynamic range. While registration of 2D RGB images to 3D point clouds is a long-standing problem in computer vision,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Xiuhong Lin , Changjie Qiu , Zhipeng Cai , Siqi Shen , Yu Zang , Weiquan Liu , Xuesheng Bian , Matthias Müller , Cheng Wang

Collaborative perception enables more accurate and comprehensive scene understanding by learning how to share information between agents, with LiDAR point clouds providing essential precise spatial data. Due to the substantial data volume…

Signal Processing · Electrical Eng. & Systems 2025-09-09 Ensong Liu , Rongqing Zhang , Xiang Cheng , Jian Tang

Large-scale pre-trained transformers have demonstrated remarkable success in various computer vision tasks. However, it is still highly challenging to fully fine-tune these models for downstream tasks due to their high computational and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-27 Zhao Song , Ke Yang , Naiyang Guan , Junjie Zhu , Peng Qiao , Qingyong Hu

Point cloud, as a 3D representation, is widely used in autonomous driving, virtual reality (VR), and augmented reality (AR). However, traditional communication systems think that the point cloud's semantic information is irrelevant to…

Multimedia · Computer Science 2023-07-13 Xiaoyi Liu , Haotai Liang , Zhicheng Bao , Chen Dong , Xiaodong Xu

Given the prominence of current 3D sensors, a fine-grained analysis on the basic point cloud data is worthy of further investigation. Particularly, real point cloud scenes can intuitively capture complex surroundings in the real world, but…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Shi Qiu , Saeed Anwar , Nick Barnes

We study multi-sensor fusion for 3D semantic segmentation that is important to scene understanding for many applications, such as autonomous driving and robotics. Existing fusion-based methods, however, may not achieve promising performance…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Mingkui Tan , Zhuangwei Zhuang , Sitao Chen , Rong Li , Kui Jia , Qicheng Wang , Yuanqing Li

Point cloud segmentation (PCS) plays an essential role in robot perception and navigation tasks. To efficiently understand large-scale outdoor point clouds, their range image representation is commonly adopted. This image-like…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Bike Chen , Chen Gong , Juha Röning

The pretrain-finetune paradigm has achieved great success in NLP and 2D image fields because of the high-quality representation ability and transferability of their pretrained models. However, pretraining such a strong model is difficult in…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Xiaoshui Huang , Zhou Huang , Sheng Li , Wentao Qu , Tong He , Yuenan Hou , Yifan Zuo , Wanli Ouyang

Recent approaches for few-shot 3D point cloud semantic segmentation typically require a two-stage learning process, i.e., a pre-training stage followed by a few-shot training stage. While effective, these methods face overreliance on…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Jiahui Wang , Haiyue Zhu , Haoren Guo , Abdullah Al Mamun , Cheng Xiang , Tong Heng Lee

The point clouds collected by the Airborne Laser Scanning (ALS) system provide accurate 3D information of urban land covers. By utilizing multi-temporal ALS point clouds, semantic changes in urban area can be captured, demonstrating…

Computer Vision and Pattern Recognition · Computer Science 2025-02-20 Luqi Zhang , Haiping Wang , Chong Liu , Zhen Dong , Bisheng Yang

Semantic segmentation is an important and well-known task in the field of computer vision, in which we attempt to assign a corresponding semantic class to each input element. When it comes to semantic segmentation of 2D images, the input…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Ivan Martinović

Deep learning on point clouds plays a vital role in a wide range of applications such as autonomous driving and AR/VR. These applications interact with people in real-time on edge devices and thus require low latency and low energy.…

Hardware Architecture · Computer Science 2021-10-15 Yujun Lin , Zhekai Zhang , Haotian Tang , Hanrui Wang , Song Han

Semantic Segmentation (SS) of LiDAR point clouds is essential for many applications, such as urban planning and autonomous driving. While much progress has been made in interpreting SS predictions for images, interpreting point cloud SS…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Abhishek Kuriyal , Vaibhav Kumar

In recent years, point cloud analysis methods based on the Transformer architecture have made significant progress, particularly in the context of multimedia applications such as 3D modeling, virtual reality, and autonomous systems.…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Qiang Zheng , Chao Zhang , Jian Sun

Ultra-high-resolution streaming and emerging immersive services are driving rapidly increasing wireless video traffic. However, perceptually pleasing video transmission over bandwidth-limited and latency-constrained wireless links remains…

Image and Video Processing · Electrical Eng. & Systems 2026-05-20 Yinhuan Huang , Zhijin Qin